Artec V-Band Turbo Exhaust ManifoldThe Artec Cast SR20 manifold has been designed to accept a wide variety of turbos that use a 50 to 55mm ID on the inlet flange. These include Precision, Tial, and Garrett. The wastegate has been positioned to allow for easy routing for a plumb back or vent to air layout. The wastegate comes fully machined to accept most 44 45 46mm wastegates. The wastegate pipe is also designed to flow up to a 50mm wastegate unit, so you would simply cut our flange